With the increasing number of users in blockchain-based cryptocurrencies, the public has raised the demand for transaction throughput, and many protocols are designed to improve the throughput following the Nakamoto consensus. Although astonishing progress has been made in the on-chain throughput improvement, high throughput makes the blockchains suffer from the increasing blockchain size, hard forks, and possible attacks. In this work, we propose a quantitative model to describe and analyze the Nakamoto consensus. We then design a robust scheme named Ursa to reduce storage requirements and to reduce the forks by automatically adjusting block size according to users’ needs.

中文翻译：

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大熊座

随着基于区块链的加密货币用户数量的增加，公众对交易吞吐量提出了更高的要求，许多协议旨在提高基于区块链的加密货币的吞吐量。中本共识。尽管在链上吞吐量改进方面取得了惊人的进展，但高吞吐量使区块链受到越来越大的区块链规模、硬分叉和可能的攻击的影响。在这项工作中，我们提出了一个定量模型来描述和分析中本共识。然后，我们设计了一个名为 Ursa 的稳健方案，通过根据用户需求自动调整块大小来减少存储需求并减少分叉。